Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. WILLIAM C LOUDENSLAGER OD
NPI 1528035110
Optometrist in Greenville, OH

Q: What is William Loudenslager's NPI number?

The NPI number for William Loudenslager is 1528035110. It was assigned to this individual provider in the NPPES registry on March 2, 2006.

Q: What is William Loudenslager's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Active since March 02, 2006

5164 CHILDRENS HOME RD, GREENVILLE, OH 45331(937) 548-7811(937) 547-0672 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. William C Loudenslager Od NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM C LOUDENSLAGER OD (NPI 1528035110) is an individual optometrist in Greenville, Ohio, licensed in Ohio (2709/T1249) and active in the NPI registry since March 2006.

NPPES Registry Identity

NPI1528035110

Entity TypeIndividualMale

Primary Taxonomy152W00000X

Provider Legal NameDR. WILLIAM C LOUDENSLAGERCredential: OD

Location Address5164 CHILDRENS HOME RDGreenville, OH 45331-9327

Mailing Address5164 Childrens Home RdGreenville, OH 45331-9327 · (937) 548-7811 · Fax (937) 547-0672

Phone(937) 548-7811

Fax(937) 547-0672

Sole ProprietorNo

Enumeration DateMarch 2, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1528035110 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

License✔ Licensed in OH · 2709/T1249

Definition

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

5164 CHILDRENS HOME RD, Greenville, OH 45331

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Other Identifiers 2

Other0726870001OH · Dmerc Supplier

Medicaid5292884OH

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Loudenslager's NPI number?

The NPI number for William Loudenslager is 1528035110. It was assigned to this individual provider in the NPPES registry on March 2, 2006.

Where is William Loudenslager located?

William Loudenslager practices at 5164 Childrens Home Rd, Greenville, OH 45331. The listed phone number is (937) 548-7811.

What is William Loudenslager's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

When was this NPI record last updated?

The NPPES record for William Loudenslager was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 31 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.